6 conversion carb help Options

[BobMC914]

There is a TL;DR version if you want to skip to it.

I'm new to 914world, I think. I was on a few sites back when I first got my 914. I was on Rennlist after it was no longer porschephiles, but when it was still a listserv through the move onto the web. my old page Rennlist page but I've lost the account info and haven't had that email address in years. Several moves and marriages resulted in a lot of non-driving time for the poor little car.


Anyway, that's in the past. In the present I have some carb issues I am asking for help on. Carbs are Weber 40IDA3C. I've been chasing idle problems for a while. I installed a Pertronix Ignitor and their coil, new plugs and the card would idle. Yay, problem solved, for a while. Then the car sat a lot for another year, I got a new job in a place with warmer weather (Houston) moved there, and now am trying to drive it around a bit more. (IMG:style_emoticons/default/driving.gif) Now sometimes it would idle, but mostly it idles for a bit under a minute, then slows down and dies. Runs poorly at low/mid throttle and RPM, runs well with more throttle and RPM. I pulled out and cleaned the idle jets and the idle mix screws. I sprayed it all out with carb cleaner, then pulled it out of the garage and with the air cleaners off, I could hear and then see that fuel was running into the carb throats, filling up the venturis above the butterflies. I pulled the top off the carb and started troubleshooting. I found that one float doesn't float. It is partially filled with fluid. And there was a bunch of crud in the bottom of the float bowls. A lot of it in the bad float's bowl was green, so I kind of know what happened there. So I need a new float. Who does the forum recommend for carb parts?

TL;DR start here
40IDA3C

But my bigger question is about bushings. With the float overfull, I had fuel on the outside of the carburetor. It did not seem to be coming from the top. I am suspecting the throttle shaft bushings. Is there a good way to test this? And again who is recommended to do carb work? Is this something an amateur can do without a machine shop? Should I just expect to send it out anyway since the crud indicates the possibility of other corrosion and issues?